# CVE-2024-50346: WebFeed HTML injection vulnerabilities

> Remote attackers can inject HTML into WebFeed browser extension pages to execute CSRF attacks and spoof UI, potentially hijacking user sessions.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Nov 2024
- **Updated:** 5 Nov 2024
- **Also known as:** GHSA-mrc7-2q3w-48j8

## What is CVE-2024-50346?

CVE-2024-50346 is a medium-severity cross-site scripting vulnerability in taoso webfeed, published on 4 Nov 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

WebFeed is a lightweight web feed reader extension for Firefox/Chrome. Multiple HTML injection vulnerabilities in WebFeed can lead to CSRF and UI spoofing attacks. A remote attacker can provide malicious RSS feeds and attract the victim user to visit it using WebFeed. The attacker can then inject malicious HTML into the extension page and fool the victim into sending out HTTP requests to arbitrary sites with the victim's credentials. Users are vulnerable to CSRF attacks when visiting malicious RSS feeds via WebFeed. Unwanted actions could be executed on the user's behalf on arbitrary websites. This issue has been addressed in release version 0.9.2. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2024-50346?


## How do I fix CVE-2024-50346?

No fix has been published for CVE-2024-50346 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-50346 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-50346 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-50346 and fix it if it is affected.

What it is: CVE-2024-50346 is a medium-severity cross-site scripting vulnerability in taoso webfeed, published on 4 Nov 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-50346 exists.

Affected product: taoso webfeed. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-50346/ (Markdown: https://insights.sbomify.com/CVE-2024-50346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-50346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-50346
- OSV: https://osv.dev/vulnerability/CVE-2024-50346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-50346/
Summaries are generated and may contain mistakes; the official description above is the record.